August 23, 2021

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Geosyntec PFAS Experts Coauthored Article on Stormwater Regulations for Stormwater Magazine

Brandon Steets, P.E., Rula Deeb, Ph.D., BCEEM, PMP, Elisabeth Hawley, P.E. (California), Jennifer Arblaster (Vermont), and Adam Questad, P.E. (Massachusetts) coauthored an article entitled "PFAS: Regulatory Implications for Stormwater Discharges in California and Beyond" for publication in the August 2021 issue of Stormwater.

The team's additional coauthor was Tom Boer, Hogan Lovells U.S.

Brandon Steets is a Senior Principal Engineer based in California with more than 20 years of experience in National Pollutant Discharge Elimination System (NPDES) and Total Maximum Daily Load (TMDL) regulations, water quality modeling and monitoring, pollutant source investigation, and stormwater best management practices (BMP) planning and design.

Rula Deeb is a Senior Principal based in California with more than 25 years of experience focused on private practice and academia addressing the cross-media fate and transport of contaminants and the remediation of complex soil and groundwater sites impacted by non-aqueous phase liquids.

Elisabeth Hawley is a Senior Consultant based in northern California with 16 years of experience advancing environmental remediation projects involving site characterization, fate and transport, remediation, strategies to achieve site closure, and litigation support services.

Jennifer Arblaster is a Project Scientist based in Vermont with eight years of experience in ecological and human health risk assessment, sediment site characterization, bioaccumulation modeling and evaluation of environmental quality criteria.

Adam Questad is a Senior Engineer based in Massachusetts focused on stormwater management and water quality compliance challenges. His projects primarily include green infrastructure siting and design, hydrologic modeling to support watershed management program and NPDES compliance, stormwater resource planning, and industrial stormwater permitting strategic planning and compliance.

Stormwater has been the go-to resource for surface water quality professionals since the birth of the magazine in 1999. If it has to do with managing runoff, designing and maintaining water-quality or erosion control equipment, or achieving regulatory compliance, a Stormwater subscriber is running the program and calling the shots.


In our previous article on per- and polyfluoroalkyl substances (PFAS) in stormwater, Geosyntec provided an overview of the state of our knowledge on PFAS prevalence in urban stormwater and its treatability by standard passive nature-based stormwater treatment controls, or green infrastructure, and active treatment systems (Stormwater, August 2020). This California-focused update is a follow-up to that article, focusing on the regulatory implications of PFAS in stormwater for permitted dischargers under the Clean Water Act (CWA).

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For consultation regarding PFAS regulations, contact Brandon Steets at This email address is being protected from spambots. You need JavaScript enabled to view it.
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